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Record |
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Author  |
LHCb Collaboration (Aaij, R. et al); Fernandez Casani, A.; Jaimes Elles, S.J.; Jashal, B.K.; Libralon, S.; Martinez-Vidal, F.; Mazorra de Cos, J.; Oyanguren, A.; Rebollo De Miguel, M.; Sanderswood, I.; Zhuo, J. |
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Title |
Observation of the Open-Charm Tetraquark Candidate Tcs0* (2870)0 in the B- → D- D0KS0 Decay |
Type |
Journal Article |
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Year |
2025 |
Publication |
Physical Review Letters |
Abbreviated Journal |
Phys. Rev. Lett. |
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Volume |
134 |
Issue |
10 |
Pages |
101901 - 13pp |
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Keywords |
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Abstract |
An amplitude analysis of B- -> D- (DKS0)-K-0 decays is performed using proton-proton collision data, corresponding to an integrated luminosity of 9 fb(-1), collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. A resonant structure of spin-parity 0(+) is observed in the (DKS0)-K-0 invariant-mass spectrum with a significance of 5.3s. The mass and width of the state, modeled with a Breit-Wigner line shape, are determined to be 2883 +/- 11 +/- 8 MeV/c(2) and 87(-47)(+22) +/- 17 MeV, respectively, where the first uncertainties are statistical and the second systematic. These properties and the quark content are consistent with those of the open-charm tetraquark candidate T-cs0(*)(2870)(0) observed previously in the D+K- final state of the B- -> D-D+K- decay. This result confirms the existence of the T-cs0(*)(2870)(0) state in a new decay mode. The T-c10(*) (2900)(0) state, reported in the B- -> D-D+K- decay, is also searched for in the (DKS0)-K-0 invariant-mass spectrum of the B- -> D- (DKS0)-K-0 decay, without finding evidence for it. |
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Address |
[Bonacci, R. B.; Torres, M. Cruz; Dekkers, S.; Egede, U.; Fujii, Y.; Hadavizadeh, T.; Harris, T. H.; Henderson, R. D. L.; Lane, J. J.; Liu, F. L.; Monk, M.; Song, R.; Walton, E. J.; Ward, J. A.] Monash Univ, Sch Phys & Astron, Melbourne, Vic, Australia |
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Thesis |
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Publisher |
Amer Physical Soc |
Place of Publication |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0031-9007 |
ISBN |
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Medium |
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Conference |
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Notes |
WOS:001509091000001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
6721 |
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